Evaluate a Function

f(x) is the same thing as ______.

• y

• x

How do you read f(x)?

• f x

• f of x

• f parenthesis x

What is the definition of function?

• Has inputs and outputs

• Every input has only ONE output

• Inputs have different outputs every time

If f(x) = 2x+1, what would the function look like once you substitute 1 in for x?

• f(1) = 2x (1) + 1

• f(1) = 2 (1) + 1

• -1

• 1

• 5

• -1

• 1

• 5

• 2x

• -3

• 3

• -8

• 10

• -144

• 4

• -3

• -12

• -32

• -3

• -12